A micro-trephine handle for adsorption hemostasis

Abstract

The present invention provides a micro-trephine handle for adsorption hemostasis, belonging to the technical field of medical auxiliary instruments, comprising a trephine handle and a micro-trephine needle; further comprising: an adsorption hemostasis unit, comprising: a limiting sleeve, one end of which is detachably connected to the top end of the trephine handle, and a channel for avoiding the micro-trephine needle is opened along the axis; an adsorption ring, which is hollow inside and sleeved on the outside of the micro-trephine needle, one end of which is connected to the other end of the limiting sleeve through multiple elastic reset members, and a plurality of through holes are opened on its surface; a drainage pipe, one end of which is connected to the adsorption ring and the other end passes through the limiting sleeve; a liquid storage pipe, which is detachably connected to the bottom end of the trephine handle, and the liquid storage pipe is connected to the drainage pipe through a drainage pipe. The present invention sets up an elastically resettable adsorption hemostasis unit at the micro-trephine needle, which can quickly absorb exuded blood during skin trephine surgery to avoid affecting the surgical field of view.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary instruments, and in particular to a micro-trephine handle for adsorption and hemostasis. Background Art

[0002] Acne vulgaris is a common skin disease that often leaves scars after recovery. Up to 95% of patients experience mild to moderate scarring, and 30% experience severe scarring. Acne scars can be morphologically classified into depressed scars, hypertrophic scars, and keloids. Depressed scars are the most common, accounting for approximately 80% to 90%. These scars appear as indentations or are accompanied by hyperpigmentation and typically do not resolve on their own. Scars are typically categorized by size as icepick scars, boxcar scars, and roller scars. Ultrapulsed CO2 fractional laser treatment is currently commonly used in clinical practice to treat depressed scars. This laser utilizes fractional photothermal therapy deep within the dermis, stimulating collagen production and thereby repairing the depressed scar. However, ultrapulsed CO2 fractional laser treatment has a relatively long recovery time, and increased treatment frequency can lead to adverse reactions such as erythema, pain, hyperpigmentation, dryness, and infection. It is less effective for icepick and boxcar scars, making it difficult for some patients to accept. Therefore, ice cone scars and boxcar scars among acne depressed scars are currently difficult to treat clinically.

[0003] Micro-trephine technology uses a micro-trephine with an inner diameter of 0.6 to 2.4 mm and adjustable speed. The drill bit has a trumpet-shaped appearance, a high speed, and can be connected to an external negative pressure suction device. During operation, the micro-trephine can be pushed deep into the dermis with the help of negative pressure and the rotational force of the drill bit. It can be used to complete trephine resection, trephine lift and trephine tissue transplantation. Compared with traditional trephine technology, the micro-trephine has a smaller drill bit inner diameter, more precise and convenient operation, low cost, no consumables, simple operation, high efficiency, small wound surface, rapid wound healing, and no need for suture after surgery, which has the advantages of improving the therapeutic effect.

[0004] When performing micro-trephination on icepick and boxcar-shaped scars of depressed acne scars, clinicians often face the significant challenge of wound bleeding after local anesthesia. Due to the rich blood supply of facial skin and the abnormal structure of the dermis in the acne scar area, most patients are prone to persistent bleeding at the minimally invasive incision after injection of local anesthetics such as lidocaine. This bleeding not only delays the initiation of the wound's coagulation mechanism and prolongs the initial hemostasis time, but the blood film formed also mixes with the surrounding tissue fluid, forming a translucent covering layer on the skin surface, seriously interfering with the clarity of the surgical field. When medical staff need to treat multiple scar points continuously, the blurred vision caused by bleeding forces the operator to frequently wipe or adjust the light source angle, which not only reduces the accuracy of trephination positioning, but also may cause the risk of accidental injury to surrounding tissues due to repeated wiping. More importantly, the bleeding environment will accelerate platelet aggregation and the release of inflammatory factors, which may induce local hematoma or scar hyperplasia, affecting the final cosmetic effect. However, the existing technology lacks a structure that can quickly stop bleeding. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a micro-trephine handle for adsorption and hemostasis, in which an elastically resettable adsorption and hemostasis unit is installed at the micro-trephine needle of the original micro-trephine, which can quickly absorb exuded blood during skin trephine surgery to avoid affecting the line of sight.

[0006] The present invention provides the following technical solutions:

[0007] A micro-trephine handle for adsorption hemostasis comprises a trephine handle and a micro-trephine needle arranged at the top of the trephine handle; and further comprises an adsorption hemostasis unit mounted on the trephine handle; the adsorption hemostasis unit comprises:

[0008] A limiting sleeve, one end of which is detachably connected to the top end of the trephine handle and has a passage along its axis for avoiding the micro-trephine needle;

[0009] The adsorption ring is hollow inside and is sleeved on the outside of the micro-trepanation needle. One end of the adsorption ring is connected to the other end of the limiting sleeve through multiple elastic reset members. The surface of the adsorption ring is provided with multiple through holes.

[0010] The thrombin supply unit is mounted on the adsorption ring to provide thrombin;

[0011] A drainage pipe, one end of which is connected to the adsorption ring, and the other end of which passes through the limiting sleeve and penetrates the trephine handle;

[0012] The liquid storage tube is detachably connected to the bottom end of the trephine handle and shares a negative pressure suction device with the micro-trephine needle; the liquid storage tube is connected to the drainage pipeline through a drainage tube.

[0013] Preferably, the thrombin supply unit comprises:

[0014] A rotating collar is sleeved on the outer sides of the micro-trepanation needle, the drainage pipe and the plurality of elastic reset members; one end of the rotating collar is sleeved on the other end of the limiting sleeve and is rotatably connected to the limiting sleeve;

[0015] A plurality of thrombin supply spheres are evenly rotated in the circumference and embedded in the other end of the adsorption ring; the thrombin supply spheres are filled with thrombin and have holes for releasing thrombin;

[0016] A rotating ring plate is sleeved on the outer side of the micro-trephine needle, and a plate surface is provided with a plurality of blood drainage holes and a thrombin supply sphere avoidance hole; the rotating ring plate is connected to the rotating sleeve through a plurality of telescopic parts; one end of the rotating ring plate is in contact with the plurality of thrombin supply spheres;

[0017] When the rotating ring rotates, the thrombin supply sphere is rotated, or the hole is rotated outward so that the thrombin supply sphere avoidance hole is aligned with the thrombin supply sphere, or the hole is rotated inward so that the blood discharge hole is aligned and connected with the through hole of the adsorption ring.

[0018] Preferably, the holes of the plurality of thrombin supply spheres are inclined and face the tube wall of the micro-trephine needle respectively.

[0019] Preferably, an annular guide groove is formed at the bottom of the rotating ring plate; the bottom of the annular guide groove abuts against the tops of the plurality of thrombin supplying spheres.

[0020] Preferably, the telescopic member is a telescopic rod, comprising a sleeve and a rod member that are sleeved together; a buffer spring is provided in the telescopic rod, one end of the buffer spring is fixedly connected to the bottom of the sleeve, and the other end is fixedly connected to one end of the rod member.

[0021] Preferably, the elastic return member is a return spring.

[0022] Preferably, the drainage pipe and the drainage tube are flexible pipes.

[0023] Preferably, the limiting sleeve is connected to the top end of the trephine handle via a thread; the liquid storage tube is connected to the bottom end of the trephine handle via a thread.

[0024] Preferably, a medical adsorption sponge is provided on the surface of the rotating ring plate.

[0025] Beneficial effects of the present invention:

[0026] The present invention proposes a micro-trephine handle for adsorption hemostasis. In order not to affect the operation of the micro-trephine and the operation of static bleeding adsorption, the present invention proposes an elastic reset type adsorption hemostasis unit. After the trephine is completed, the adsorption ring of the adsorption hemostasis unit contacts the skin surface, and then through the multiple through holes opened on the surface of the adsorption ring combined with the drainage tube, the drainage pipe and the liquid storage tube at the end of the handle, and combined with a negative pressure device, the bleeding on the skin surface can be quickly adsorbed and treated, achieving hemostasis and improving the clarity of the surgical field, which is convenient for subsequent surgical treatment of other trephine points. The present invention also provides a thrombin supply unit, which drives the thrombin supply sphere to rotate by rotating the ring plate, and sprinkles the thrombin to the trephine point to achieve drug hemostasis. Thrombin is sprinkled to the micro-trephine needle through the inclined holes of the thrombin supply sphere, and the thrombin can be brought into the trephine point by the micro-trephine needle and enter the tissue to achieve drug hemostasis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a diagram of the overall assembly structure of the micro-trephine handle for adsorption hemostasis according to an embodiment of the present invention;

[0028] Figure 2 This is a partial structural diagram of a micro-trephine handle for adsorption hemostasis according to an embodiment of the present invention;

[0029] Figure 3 This is a partial structural diagram from another angle of the micro-trephine handle for adsorption hemostasis according to an embodiment of the present invention;

[0030] Figure 4 1 is a top view of a micro-trephine handle for adsorption hemostasis according to an embodiment of the present invention.

[0031] Among them, 1. Micro-trephine needle; 2. Trephine handle; 3. Drainage tube; 4. Liquid storage tube; 5. Negative pressure pipe; 6. Limit sleeve; 7. Rotating ring; 8. Telescopic rod; 9. Return spring; 10. Adsorption ring; 11. Thrombin supply sphere; 12. Rotating ring plate; 13. Blood drainage hole; 14. Drainage pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended solely to illustrate the present invention and are not intended to limit the present invention. In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" to indicate positions or locations are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate description and simplify the present invention. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Therefore, features designated "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] Example

[0035] When micro-trephine is used to treat ice-pick and boxcar-shaped scars of depressed acne scars, most patients experience local bleeding after local anesthesia, which not only affects wound healing but also affects the vision of other subsequent operations, making it inconvenient for medical staff to perform subsequent trephine operations. To this end, this embodiment proposes a micro-trephine for adsorption hemostasis, the specific structure of which is as follows: Figure 1 As shown, it includes a trephine handle 2 and a micro trephine needle 1 arranged at the top of the trephine handle 2. On this basis, the present invention also includes an adsorption hemostasis unit and a thrombin supply unit mounted on the trephine handle 2. The detailed structure is shown in FIG. Figure 2 and Figure 3 The figures shown are all local structural diagrams of the micro-trephine end from different perspectives.

[0036] The adsorption hemostasis unit of the present invention is mounted on the end of the trephine handle 2 in an elastic limiting manner and does not contact the microtrephine needle 1 during trephine. Specifically, the adsorption hemostasis unit includes a limiting sleeve 6, an adsorption ring 10, a drainage pipe 14 and a liquid storage tube 4. One end of the limiting sleeve 6 is detachably connected to the top of the trephine handle 2, and a channel for avoiding the micro-trephine needle 1 is provided along the axis thereof; the adsorption ring 10 is hollow inside and is sleeved on the outside of the micro-trephine needle 1, and one end thereof is connected to the other end of the limiting sleeve 6 through a plurality of elastic reset parts; a plurality of through holes are provided on the surface of the adsorption ring 10; one end of the drainage pipe 14 is connected to the adsorption ring 10, and the other end passes through the limiting sleeve 6 and penetrates the trephine handle 2; the liquid storage tube 4 is detachably connected to the bottom end of the trephine handle 2, and shares a negative pressure suction device with the micro-trephine needle 1; the liquid storage tube 4 is connected to the drainage pipe 14 through the drainage tube 3, and a complete closed-loop adsorption channel is formed by the liquid storage tube 4, the drainage tube 3, the drainage pipe 14 and the adsorption ring 10, so as to achieve the treatment of bleeding on the skin surface. Among them, the elastic reset part is a reset spring 9 or other elastic reset part, or an elastic telescopic rod. The drainage pipe 14 and the drainage pipe 3 are flexible pipes, which are easy to install and disassemble, and do not affect the trephine operation.

[0037] The adsorption hemostasis unit of the present invention is a detachable disposable product, which is fixed to the micro-trephine needle 1 by a threaded connection. The whole unit adopts the negative pressure principle for adsorption. When the micro-trephine needle 1 penetrates the trephine point, the adsorption ring 10 contacts the external skin surface near the trephine point, and the negative pressure adsorption does not affect the overall trephine operation.

[0038] like Figure 4 As shown, Figure 4 It is a top view. The thrombin supply unit includes a rotating ring 7, a rotating ring plate 12, and multiple thrombin supply spheres 11. The rotating ring 7 is sleeved on the outside of the micro-trephine needle 1, the drainage pipe 14, and multiple elastic reset parts; one end of the rotating ring 7 is sleeved on the other end of the limiting sleeve 6 and is rotatably connected to the limiting sleeve 6; multiple thrombin supply spheres 11 are embedded in the other end of the adsorption ring 10 and rotate uniformly in the circumferential direction; the thrombin supply spheres 11 are filled with thrombin and have holes for releasing thrombin; the rotating ring plate 12 is sleeved on the outside of the micro-trephine needle 1, and the plate surface is provided with multiple blood drainage holes 13 and thrombin supply sphere avoidance holes, and has a medical adsorption sponge for auxiliary adsorption; the rotating ring plate 12 is connected to the rotating ring 7 by multiple telescopic parts; one end of the rotating ring plate 12 abuts against the multiple thrombin supply spheres 11. The telescopic member is a telescopic rod 8, comprising a sleeve and a rod. A buffer spring is disposed within the telescopic rod 8, one end of which is fixedly connected to the bottom of the sleeve and the other end to one end of the rod. This arrangement effectively drives the rotating ring plate 12 in rotation without affecting the expansion and contraction of the suction ring 10 during trepanation by the microtrepanning needle 1.

[0039] The present invention also provides some structural optimization solutions, such as Figure 2 and Figure 3 As shown, first, in order to allow the drug to enter the tissue, the holes of the multiple thrombin supply spheres 11 are tilted, facing the tube wall of the micro-trephine needle 1 respectively. Thrombin is sprinkled toward the micro-trephine needle through the tilted holes of the thrombin supply spheres, and the thrombin can be brought into the trephine point by the micro-trephine needle to enter the tissue to achieve drug hemostasis. Secondly, in order to facilitate the stable rotation of the thrombin supply sphere 11, an annular guide groove is provided at the bottom of the rotating ring plate 12; the bottom of the annular guide groove abuts against the top of the multiple thrombin supply spheres 11, so that the rotating ring plate 12 can smoothly drive the multiple thrombin supply spheres 11 to rotate under the drive of the rotating ring 7, realizing that the holes of the thrombin supply spheres 11 are exposed or hidden.

[0040] In the present embodiment, the supply of thrombin and the adsorption of oozing blood are staggered operations and are controlled by the rotating collar 7. Specifically, the rotation and negative pressure adsorption of the micro-trephine needle 1 in the micro-trephine handle are still controlled by the pedal in the existing equipment to open and close. The liquid storage tube 4 and the micro-trephine needle 1 share a negative pressure suction device, but use different negative pressure channels. After performing the trephine operation, the trephine point is pressed for several seconds by rotating the ring plate 12 to perform negative pressure oozing blood adsorption, and then the rotating collar 7 is rotated to rotate the thrombin supply sphere 11, and the hole is turned out while the thrombin supply sphere avoidance hole is aligned with the thrombin supply sphere 11 to achieve thrombin supply. After completing the thrombin supply, the entire micro-trephine handle can be taken away, and the hole is turned in by rotating the collar 7 to align the blood discharge hole 13 with the through hole of the adsorption ring 10 again, waiting for the surface oozing blood adsorption of the next trephine point.

[0041] In this embodiment, the present invention innovatively proposes a micro-trepanation device with integrated adsorption hemostasis function, and its core breakthrough lies in the development of an elastic reset adsorption hemostasis unit. This unit adopts a ring-shaped adsorption structure design, and its uniqueness lies in: after the trepanation operation is completed, the adsorption ring is precisely attached to the skin surface through an elastic reset mechanism, and the microporous array distributed on the surface forms a directional adsorption flow channel under the drive of the negative pressure device. The fluid path design through the drainage tube and the drainage pipe to the liquid storage tube at the end of the handle can achieve instantaneous negative pressure suction of wound bleeding, and quickly establish a clear field of vision within 3-5 seconds. This dynamic adsorption mechanism not only avoids the obstruction of the operating field of vision by traditional compression hemostasis, but also maintains the cleanliness of the surgical area through continuous exudate management, creating favorable conditions for continuous operation at multiple points.

[0042] To build a dual hemostasis guarantee system, the present invention simultaneously designs a thrombin targeted delivery unit. Its innovation lies in the use of a rotatable ring plate to drive the thrombin-carrying sphere, and the controlled release of the drug is achieved through the specially designed inclined drug discharge holes on the surface of the sphere. When the operator rotates the ring plate, the thrombin particles can be directly sprinkled onto the trephine wound through the holes on the surface of the sphere, or they can be delivered to the subcutaneous tissue through the spiral grooves of the micro-trephine needle, forming a "surface-deep" biphasic hemostatic effect. This mechanical-drug synergistic hemostatic strategy not only significantly improves hemostasis efficiency, but also promotes the early formation of a fibrin network through the tissue penetration of thrombin, creating an ideal microenvironment for wound repair.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A micro-trephine handle for adsorption hemostasis, comprising a trephine handle (2) and a micro-trephine needle (1) arranged at the top end of the trephine handle (2); characterized in that: It also includes an adsorption hemostasis unit mounted on the trephine handle (2); the adsorption hemostasis unit includes: A limiting sleeve (6), one end of which is detachably connected to the top end of the trephine handle (2), and a channel is opened along the axis thereof to avoid the micro trephine needle (1); An adsorption ring (10) is hollow inside and is sleeved on the outside of the micro-ring drill needle (1), one end of which is connected to the other end of the limiting sleeve (6) through a plurality of elastic reset members; a plurality of through holes are formed on the surface of the adsorption ring (10); A thrombin supply unit is mounted on the adsorption ring (10) to provide thrombin; A drainage pipe (14), one end of which is connected to the adsorption ring (10), and the other end of which passes through the limiting sleeve (6) and penetrates the trephine handle (2); A liquid storage tube (4) is detachably connected to the bottom end of the trephine handle (2) and shares a negative pressure suction device with the micro-trephine needle (1); the liquid storage tube (4) is connected to the liquid discharge pipe (14) through the drainage tube (3); The thrombin supply unit comprises: A rotating collar (7) is sleeved on the outer sides of the micro-ring drill needle (1), the drainage pipe (14) and the plurality of elastic reset members; one end of the rotating collar (7) is sleeved on the other end of the limiting sleeve (6) and is rotatably connected to the limiting sleeve (6); A plurality of thrombin supply spheres (11) are embedded in the other end of the adsorption ring (10) so as to rotate uniformly in the circumferential direction; the thrombin supply spheres (11) are filled with thrombin and have holes for releasing thrombin; A rotating ring plate (12) is sleeved on the outer side of the micro-trepanation needle (1), and a plate surface is provided with a plurality of blood discharge holes (13) and thrombin supply sphere avoidance holes; the rotating ring plate (12) is connected to the rotating sleeve (7) through a plurality of telescopic parts; one end of the rotating ring plate (12) is in contact with the plurality of thrombin supply spheres (11); When the rotating ring (7) rotates, the thrombin supply sphere (11) is rotated. In the first state, the hole of the thrombin supply sphere (11) rotates outward and is aligned with the avoidance hole, and the blood discharge hole (13) is not connected to the through hole of the adsorption ring (10); in the second state, the hole of the thrombin supply sphere (11) rotates inward and is not aligned with the avoidance hole, and the blood discharge hole (13) is connected to the through hole of the adsorption ring (10).

2. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: The holes of the multiple thrombin supply spheres (11) are inclined and face the tube wall of the micro-trephine needle (1).

3. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: An annular guide groove is provided at the bottom of the rotating ring plate (12); the bottom of the annular guide groove abuts against the tops of the plurality of thrombin supply spheres (11).

4. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: The telescopic member is a telescopic rod (8), comprising a sleeve and a rod member that are sleeved together; a buffer spring is provided in the telescopic rod (8), one end of the buffer spring is fixedly connected to the bottom of the sleeve, and the other end is fixedly connected to one end of the rod member.

5. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: The elastic reset member is a reset spring (9).

6. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: The drainage pipe (14) and the drainage pipe (3) are flexible pipes.

7. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: The limiting sleeve (6) is connected to the top end of the trephine handle (2) via a thread; and the liquid storage tube (4) is connected to the bottom end of the trephine handle (2) via a thread.

8. The micro-trephine handle for adsorption hemostasis according to claim 1, characterized in that: A medical adsorption sponge is provided on the surface of the rotating ring plate (12).

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